Hydrofluorosilicic Acid 23% ACS

Category : Acids

$25.43
Quantity
Size:
Variation:
  • $25.43
    Delivery every
    $24.16
  • $34.67
    Delivery every
    $32.94
  • $48.75
    Delivery every
    $46.31
  • $71.54
    Delivery every
    $67.96
  • $48.75
    Delivery every
    $46.31
  • $71.54
    Delivery every
    $67.96
  • $137.81
    Delivery every
    $130.92
  • $3,876.41
    Delivery every
    $3,682.59
  • $170.53
    Delivery every
    $162.00
  • $627.56
    Delivery every
    $596.18
  • $4,797.06
    Delivery every
    $4,557.21
  • $477.32
    Delivery every
    $453.45
  • $1,495.53
    Delivery every
    $1,420.75
  • $4,854.96
    Delivery every
    $4,612.21
  • $5,655.94
    Delivery every
    $5,373.14
  • $6,244.15
    Delivery every
    $5,931.94

Need a different spec?

Hydrofluorosilicic Acid 23% ACS Current
Hydrofluorosilicic Acid 23% (HFS) From $17.02
Other Grades & Concentrations

Available in other grades and concentrations:

Hydrofluorosilicic Acid 23% (HFS)
From $17.02
CAS: 16961-83-4 F6H2Si
$25.43
Other Grades & Concentrations

Available in other grades and concentrations:

Hydrofluorosilicic Acid 23% (HFS)
From $17.02
CAS: 16961-83-4 F6H2Si

Hydrofluorosilicic Acid 23% ACS

$25.43

Commercial Fulfillment Snapshot

Buy Hydrofluorosilicic Acid 23% ACS with faster decisions and fewer back-and-forth emails.

Ships from Taylor, Texas. In-stock orders placed before 1:00 PM CT (Mon-Thu) and before 12:00 PM CT (Fri) typically ship same business day. Order online 24/7.

Technical Documents

Lot-specific COA is issued per shipment batch.

Who Buys This
  • Analytical chemistry laboratories
  • Research & QA/QC labs
  • Fluorine chemical formulators
  • Electroplating process laboratories
  • Specialty chemical R&D teams
Purity / Grade Guide
  • ACS Grade certified purity
  • Laboratory analytical procedures
  • High-purity reagent applications
  • Controlled 23% concentration verified by COA range
Pack Sizes
  • 1 Quart: lab & small jobs
  • 1 Gallon: shop & maintenance
  • 5 Gallon: production & regular use
  • 15 Gallon: mid-volume operations
  • 55 Gallon: bulk drum
  • 275 Gallon: high-volume tote
  • 330 Gallon: max-volume tote
SDS / COA / TDS
  • UN 1778 Class 8 packaging
  • Safety Data Sheet included
  • Certificate of Analysis provided
  • ACS reagent documentation
Small Packs: UPS Ground nationwide for pints, quarts, and gallons.
LTL / FTL: ABF, SEFL, Saia, XPO, and partner carriers for pails, drums, totes, and full truckloads.
Support: Email or call for freight options, hazardous-material routing, and lead-time confirmation.

Why Hydrofluorosilicic Acid 23% ACS

Hydrofluorosilicic Acid 23% ACS is specifically manufactured to meet the rigorous purity standards established by the American Chemical Society, making it the required choice for highly sensitive analytical methods and precise laboratory research. At a stable 23% concentration, this clear, colorless liquid provides a consistent, water-miscible H2SiF6 solution necessary for exact volumetric dosing in critical environmental testing and advanced industrial chemical processes. Buyers specify this strict ACS grade rather than standard technical alternatives when measuring trace impurities is mandatory, as unmeasured contaminants could interfere with quantitative analysis, skew titration results, or compromise specialized surface finishing procedures.

Best Applications for This Grade

  • As a verified analytical reagent, this acid is commonly applied in laboratory titration and quantitative testing environments where known, ultra-low impurity limits are strictly required to establish reliable baseline data without interference.
  • Commonly applied in advanced wastewater evaluation and environmental treatment pilot studies, allowing researchers to map precise chemical reactions and pH adjustments using pure H2SiF6 before transitioning to industrial-scale dosing parameters.
  • Commonly applied in specialized metal finishing and electronics manufacturing processes, including precision glass etching and delicate surface preparation, where microscopic trace contaminants found in technical-grade acids would cause irreversible surface defects.
  • Commonly applied in the exacting synthesis of analytical-grade fluorosilicate compounds and specialty chemical intermediates, where the strict purity of the starting acid directly dictates the chemical stability of the final formulated product.
  • Commonly applied in academic and commercial research laboratories developing new analytical methods for heavy metal precipitation or complex water treatment mechanisms, requiring predictable, contaminant-free acid behavior.

When to Choose a Different Grade

  • If your operation involves bulk municipal wastewater treatment, standard industrial metal pickling, or routine environmental pH adjustment where strict American Chemical Society impurity thresholds are unnecessary, choose Hydrofluorosilicic Acid 23% (HFS) to meet operational requirements without incurring reagent-grade costs.
  • If your facility focuses on large-scale industrial surface preparation, heavy-duty concrete cleaning formulations, or high-volume commercial chemical blending rather than precise analytical laboratory methodology, select the standard industrial Hydrofluorosilicic Acid 23% (HFS).
  • If you are formulating standard industrial etching solutions where the primary functional driver is the active 23% H2SiF6 concentration rather than a certified low-impurity analytical profile, select Hydrofluorosilicic Acid 23% (HFS).
Property Value
Molecular Weight 144.08
Formula H2SiF6
Assay 22.5-23.5%
Grade ACS Grade
Form Liquid
Solubility Soluble in water
Appearance Colorless liquid
Melting Point -37°C (-34.6°F)
Boiling Point 108
Specific Gravity 1.200
Industry Water Treatment, Industrial Chemistry, Environmental Management, Manufacturing, Analytical Chemistry

Frequently Asked Questions About Hydrofluorosilicic Acid 23% ACS

What is Hydrofluorosilicic Acid 23% ACS and what is its chemical formula?
Hydrofluorosilicic Acid 23% ACS is a chemical compound with the molecular formula F6H2Si, registered under CAS Number 16961-83-4 by the Chemical Abstracts Service (PubChem), with a molecular weight of 144.091 g/mol. Alliance Chemical supplies Hydrofluorosilicic Acid 23% ACS in ACS Reagent grade for laboratory, industrial, and commercial applications.
What are the physical properties of Hydrofluorosilicic Acid 23% ACS?
According to the NIOSH Pocket Guide to Chemical Hazards, Hydrofluorosilicic Acid 23% ACS is supplied as a clear, colorless liquid. It has a melting point of -37°C (-34.6°F)°C, a boiling point of 108°C (226.4°F)°C. The specific gravity is 1.12 relative to water. Solubility: Miscible with water.
What grade and purity of Hydrofluorosilicic Acid 23% ACS does Alliance Chemical offer?
Alliance Chemical offers Hydrofluorosilicic Acid 23% ACS in ACS Reagent grade with a purity assay of 23%. Every lot ships with a Certificate of Analysis (COA) and Safety Data Sheet (SDS) prepared in accordance with OSHA Hazard Communication Standard 29 CFR 1910.1200 and GHS Revision 7. Download SDS.
What are common industrial applications of Hydrofluorosilicic Acid 23% ACS?
Hydrofluorosilicic Acid 23% ACS serves a wide range of sectors, including Industrial & Manufacturing, and Water & Environmental.Alliance Chemical provides the documentation and quality certifications required for use in regulated environments.
What PPE is required when handling Hydrofluorosilicic Acid 23% ACS?
OSHA-mandated PPE per 29 CFR 1910.132-138:Chemical-resistant gloves (20+ mil neoprene or PVC), full face shield over safety goggles (ANSI Z87.1), acid-resistant apron or chemical suit, closed-toe chemical-resistant footwear. Emergency eyewash station and safety shower must be accessible within 10 seconds per ANSI Z358.1. Consult the SDS available from Alliance Chemical for complete PPE requirements.
What are the storage requirements for Hydrofluorosilicic Acid 23% ACS?
Store perOSHA 29 CFR 1910.1450: Dedicated corrosives cabinet with secondary containment (110% volume per EPA 40 CFR 264.175). Temperature range:15-25°C. Segregate from:bases, reactive metals, organic materials. Maximum storage:2-3 years unopened.
What is the emergency spill procedure for Hydrofluorosilicic Acid 23% ACS?
Emergency response per EPA SPCC (40 CFR 112) and OSHA 29 CFR 1910.120: (1) Alert personnel, evacuate area to 50 feet. (2) Eliminate ignition sources if flammable. (3) Don PPE per SDS Section 8. (4) Stop leak if safe; use emergency shutoffs. (5) Contain with non-combustible absorbent materials, dike with sand/earth. (6)Carefully neutralize with sodium bicarbonate (5-10% solution), monitor exothermic reaction. (7) Collect in DOT-approved containers, label as hazardous waste. Check 40 CFR 302.4 for Reportable Quantity. Emergency: Chemtel 1-800-255-3924 (24/7). Non-emergency: Alliance Chemical 512-365-6838.
What is the DOT shipping classification for Hydrofluorosilicic Acid 23% ACS?
DOT Classification per 49 CFR 172.101:UNUN1778, Hazard Class8, Packing GroupII. Requires: Hazmat shipping papers (49 CFR 172.200), UN specification packaging (49 CFR 173), hazmat labels (172.400). Alliance Chemical ships all orders in DOT-compliant packaging with proper documentation.
How must Hydrofluorosilicic Acid 23% ACS waste be disposed?
Disposal per RCRA (40 CFR 261-265):Characteristic waste D002 (Corrosive, pH ≤2 or ≥12.5). Generator requirements: EPA ID number required if >100 kg/month (40 CFR 262.12). Use EPA-permitted Treatment, Storage, Disposal Facility (TSDF). Never discharge to sewer without POTW written approval (40 CFR 403). Container disposal: Triple rinse (40 CFR 261.7), offer for reconditioning/recycling. State regulations may be more stringent — check with your local environmental agency. Consult the Alliance Chemical SDS for product-specific disposal guidance.
Does Alliance Chemical provide an SDS and COA for Hydrofluorosilicic Acid 23% ACS?
Yes. Alliance Chemical provides a Safety Data Sheet (SDS) and Certificate of Analysis (COA) for every lot of Hydrofluorosilicic Acid 23% ACS. The SDS is prepared in accordance with OSHA Hazard Communication Standard 29 CFR 1910.1200 and the Globally Harmonized System (GHS) Revision 7, covering all 16 required sections including hazard identification, first aid measures, firefighting measures, handling and storage, exposure controls, and regulatory information. The SDS is available for download directly from this product page. COAs are available upon request by contacting Alliance Chemical at 512-365-6838.